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PI74AVC+16245
2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
Product Features
PI74AVC+16245 is designed for low-voltage operation, VCC = 1.65V to 3.6V True 24mA Balanced Drive @ 3.3V Compatible with Philips and T.I. AVC Logic family IOFF supports partial power-down operation 3.6V I/O Tolerant inputs and outputs All outputs contain a patented DDC (Dynamic Drive Control) circuit that reduces noise without degrading propagation delay Industrial operation: 40C to +85C Available Packages: 48-pin 240-mil wide plastic TSSOP 48-pin 173-mil wide plastic TVSOP
Product Description
Pericom Semiconductors PI74AVC+ series of logic circuits are produced using the Companys advanced submicron CMOS technology, achieving industry leading speed. The PI74AVC+16245 is a 16-bit bidirectional transceiver designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current sinking ability of the driver.
Logic Block Diagram
1DIR 1OE 1A0 1B0 1A1 1B1 1A2 1B2 1A3 1B3 1A4 1B4 1A5 1B5 1A6 1B6 1A7 1B7
2DIR 2OE 2A0 2B0 2A1 2B1 2A2 2B2 2A3 2B3 2A4 2B4 2A5 2B5 2A6 2B6 2A7 2B7
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.)
Supply voltage range, VCC .............................. 0.5V to +4.6V Input voltage range, VI ....................................0.5V to +4.6V Voltage range applied to any output in the high-impedance or power-off state, VO(1) ........0.5V to +4.6V Voltage range applied to any output in the high or low state, VO(1,2) ........................... 0.5V to VCC +0.5V Input clamp current, IIK (VI < 0) ................................... 50mA Output clamp current, IOK (VO < 0) .............................. 50mA Continuous output current, IO .................................... 50mA Continuous current through each VCC or GND .......... 100mA Package thermal impedance, JA(3): package A .......... 64C/W package K ......... 48C/W Storage Temperature range, Tstg ......................65C to 150C Notes: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 1. Input & output negative-voltage ratings may be exceeded if the input and output curent rating are observed. 2. Output positive-voltage rating may be exceeded up to 4.6V maximum if the output current rating is observed. 3. The package thermal impedance is calculated in accordance with JESD 51.
Product Pin Configuration
1DIR 1B0 1B1 GND 1B2 1B3 VCC 1B4 1B5 GND 1B6 1B7 2B0 2B1 GND 2B2 2B3 VCC 2B4 2B5 GND 2B6 2B7 2DIR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1OE 1A0 1A1 GND 1A2 1A3 VCC 1A4 1A5 GND 1A6 1A7 2A0 2A1 GND 2B2 2A3 VCC 2A4 2A5 GND 2A6 2A7 2OE
Product Pin Description
Pin Name xO E xDIR
XAX XBX
De s cription 3- State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3- State Inputs Side B Outputs or 3- State Outputs Ground Power
GND VCC
48-Pin A,V
Truth Table(1)
Inputs (1) xOE L L H xDIR L H X Bus B Data to Bus A Bus A Data to Bus B Z Outputs (1)
Notes: 1. H = High Signal Level L = Low Signal Level X = Dont Care or Irrelevant Z = High Impedance
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
Recommended Operating Conditions(1)
M in. VCC Supply Voltage Operating Data retention only VCC = 1.2V VIH High- level Input Voltage VCC = 1.4V to 1.6V VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VCC = 1.2V VCC = 1.4V to 1.6V VIL Low- level Input Voltage VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VI VO Input Voltage Output Voltage Active State 3- State VCC = 1.4V to 1.6V IOHS High- level output current VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VCC = 1.4V to 1.6V IOLS Low- level output current VCC = 1.65V to 1.95V VCC = 2.3V to 2.7V VCC = 3V to 3.6V VCC = 1.4V to 3.6V 40 0 0 0 1.4 1.2 VCC 0.65 x VCC 0.65 x VCC 1.7 2 GND 0.35 x VCC 0.35 x VCC 0.7 0.8 3.6 VCC 3.6 4 6 12 24 4 6 12 24 5 85 ns/V C mA V M ax. 3.6 Units
DtDv Input transition rise or fall rate
TA Operating free- air temperature
Notes: 1. All unused inputs must be held at VCC or GND to ensure proper device operation.
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
DC Electrical Characteristics (Over the Operating Range, TA = 40C +85C)
Parame te rs Te s t Conditions (1) IO H = 100A IO HS = 4mA VO H IO HS = 6mA IO HS = 12mA IO HS = 24mA IO LS = 100A IO LS = 4mA VO L IO LS = 6mA IO LS = 12mA IO LS = 24mA II IO FF IO Z IC C Control Inputs CI Data Inputs CO Outputs VO = VC C or GND VI = VC C or GND VI = VC C or GND VI or VO = 3.6V VO = VC C or GND VI = VC C or GND IO = 0 VIL = 0.49V VIL = 0.57V VIL = 0.7V VIL = 0.8V VIH = 0.91V VIH = 1.07V VIH = 1.7V VIH = 2V VCC 1.4V to 3.6V 1.4V 1.65V 2.3V 3V 1.4V to 3.6V 1.4V 1.65V 2.3V 3V 3.6V 0 3.6V 3.6V 2.5V 3.3V 2.5V 3.3V 2.5V 3.3V 3.5 3.5 6 6 6.5 6.5 pF M in. VC C 0.2V 1.05 1.2 1.75 2.0 0.2 0.4 0.45 0.55 0.8 2.5 10 10 40 A V Typ. M ax. Units
Note: 1. Typical values are measured at TA = 25C.
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
Switching Characteristics
From (Input) A OE OE
(Over recommended operating free-air temperature range, unless otherwise noted, see Figures 1 thru 4)
Parame te rs tpd ten tdis
To (Output) Y Y Y
VCC = 1.2V Typ. 3.9 8.4 8.4
VCC = 1.5V 0.1V M in. 0.8 1.5 2.3 4.0 9.2 9.3
VCC = 1.8V 0.15V M ax. 3.0 7.0 7.0 0.7 1.4 2.2
VCC = 2.5V 0.2V M in. 0.6 1.0 1.1 M ax. 1.9 4.3 4.0
VCC = 3.3V 0.3V M in. 0.5 0.7 1.2 M ax. 1.7 3.7 3.9
Units
M ax. M in.
ns
Operating Characteristics, TA= 25C
Parame te rs Cpd Power Dissipation Capacitance O utputs Enabled O utputs Disabled Te s t Conditions CL = 0pF, f = 10 MHz VCC = 1.8V 0.15V Typical 35 6 VCC = 2.5V 0.2V Typical 38 6 VCC = 3.3V 0.3V Typical 44 7 pF Units
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
PARAMETER MEASUREMENT INFORMATION VCC = 1.2V and 1.5V 0.1V
2xVCC From Output Under Test CL = 15pF
(See Note A)
2
S1
Open GND
Te s t tpd tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
2
Load Circuit
Timing Input tsu Data Input VCC VCC/2 0V th VCC VCC/2 VCC/2 0V
tW VCC Input VCC/2 VCC/2 0V
Voltage Waveforms Setup and Hold Times
Output Control (Low Level Enabling)
Voltage Waveforms Pulse Duration
VCC VCC/2 tPZL VCC/2 VOL +0.1V tPHZ VCC/2 VOH -0.1V VOH 0V VOL VCC/2 0V tPLZ VCC
VCC Input VCC/2 tPLH VCC /2 VCC/2 0V tPHL VOH Output VCC/2 VOL
Output Waveform 1 S1 at 2 x VCC (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 1. Load Circuit and Voltage Waveforms
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.0ns, tF 2.0ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis F. tPZL and tPZH are the same as ten G. tPLH and tPHL are the same as tpd
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
PARAMETER MEASUREMENT INFORMATION VCC = 1.8V 0.15V
2xVCC From Output Under Test CL = 30 15pF
(See Note A)
1 k 2
S1
Open GND
Te s t tpd tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
2k 1
Load Circuit
Timing Input tsu Data Input VCC VCC/2 0V th VCC VCC/2 VCC/2 0V
tW VCC Input VCC/2 VCC/2 0V
Voltage Waveforms Setup and Hold Times
Output Control (Low Level Enabling)
Voltage Waveforms Pulse Duration
VCC VCC/2 tPZL VCC/2 VCC/2 0V tPLZ VCC VOL +0.1V 0.15V tPHZ VCC/2 VOH -0.1V 0.15V VOH 0V VOL
VCC Input VCC/2 tPLH VCC /2 VCC/2 0V tPHL VOH Output VCC/2 VOL
Output Waveform 1 S1 at 2 x VCC (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 2. Load Circuit and Voltage Waveforms
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.0ns, tF 2.0ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis F. tPZL and tPZH are the same as ten G. tPLH and tPHL are the same as tpd
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
PARAMETER MEASUREMENT INFORMATION VCC = 2.5V 0.2V
2xVCC From Output Under Test
(See Note A)
500 2 500 2
S1
Open GND
Te s t tpd tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
CL =30 15pF
Load Circuit
Timing Input tsu Data Input VCC VCC/2 0V th VCC VCC/2 VCC/2 0V
tW VCC Input VCC/2 VCC/2 0V
Voltage Waveforms Setup and Hold Times
Output Control (Low Level Enabling)
Voltage Waveforms Pulse Duration
VCC VCC/2 tPZL VCC/2 VOL +0.15V tPHZ VCC/2 VOH -0.15V VOH 0V VOL VCC/2 0V tPLZ VCC
VCC Input VCC/2 tPLH VCC /2 VCC/2 0V tPHL VOH Output VCC/2 VOL
Output Waveform 1 S1 at 2 x VCC (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 3. Load Circuit and Voltage Waveforms
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.0ns, tF 2.0ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis F. tPZL and tPZH are the same as ten G. tPLH and tPHL are the same as tpd
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
PARAMETER MEASUREMENT INFORMATION VCC = 3.3V 0.3V
2xVCC From Output Under Test CL = 30 15pF
(See Note A)
500 2 500 2
S1
Open GND
Te s t tpd tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCC GND
Load Circuit
Timing Input tsu Data Input VCC VCC/2 0V th VCC VCC/2 VCC/2 0V
tW VCC Input VCC/2 VCC/2 0V
Voltage Waveforms Setup and Hold Times
Output Control (Low Level Enabling)
Voltage Waveforms Pulse Duration
VCC VCC/2 tPZL VCC/2 VCC/2 0V tPLZ VCC VOL +0.1V 0.3V tPHZ VCC/2 VOH -0.1V 0.3V VOH 0V VOL
VCC Input VCC/2 tPLH VCC /2 VCC/2 0V tPHL VOH Output VCC/2 VOL
Output Waveform 1 S1 at 2 x VCC (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 4. Load Circuit and Voltage Waveforms
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.0ns, tF 2.0ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis F. tPZL and tPZH are the same as ten G. tPLH and tPHL are the same as tpd
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PI74AVC+16245 2.5V 16-Bit Bidirectional Transceiver with 3-State Outputs
Packaging Mechanical - 48-pin TSSOP (A-package)
48
.236 .244
6.0 6.2
1
.488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE
.004 0.09 .008 0.20 0.45 .018 0.75 .030 .319 BSC 8.1
X.XX X.XX
DENOTES DIMENSIONS IN MILLIMETERS
.0197 BSC 0.50
.007 .010 0.17 0.27
.002 .006 0.05 0.15
Packaging Mechanical - 48-pin TVSOP (TSSOP) (K-package)
48
.169 .177
4.30 4.50 .0035 .008 0.09 0.20
1
.378 9.60 .386 9.80
.031 .041 0.80 1.05
0.45 .018 0.75 .030 .252 BSC 6.4 SEATING PLANE
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
.016 BSC 0.40
.0051 .009 0.13 0.23
.002 .006 0.05 0.15
Max. .047 1.20
Ordering Information
Orde ring Code PI74AVC+16245A PI74AVC+16245K D e s cription 48- pin, 240- mil wide plastic TSSO P 48- pin, 173- mil wide plastic TVSO P
Pericom Semiconductor Corporation 2380 Bering Drive San Jose, CA 95131 1-800-435-2336 Fax (408) 435-1100 http://www.pericom.com
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